Simplest units - Study guides, Class notes & Summaries

relative atomic mass (Ar) - Ans weighted mean of all the naturally occurring isotopes of the element (g/mol) relative molar mass (Mr) - Ans sum of Ar (no units) mole - Ans 6.02x10^-23 Empirical Formula - Ans shows the simplest whole number ratio of atoms of each element in a particular substance Molecular Formula - Ans shows the actual number of atoms of each element in a particular molecule or substance

Test Bank for Economics 4th Edition by Paul Krugman 1. A simplified representation that is used to study a real situation is called a(n): A) model. B) production possibility frontier. C) assumption. D) trade-off. 2. The models that economists construct: A) usually make simplifying assumptions. B) often rely on physical constructs, such as those used by architects. C) rarely use mathematical equations or graphs. D) attempt to replicate the real world. 3. When building a mod...

Describe the principles of biology and common themes of life - ️️1. Cells are the simplest units of life. 2. Living organisms use energy. 3. Living organisms interact with their environment. 4. Living organisms maintain homeostasis. 5. Living organisms grow, develop, and reproduce. 6. DNA provides a dynamic plan for sustaining life. 7. Populations of organisms evolve from generation to generation. 8. All life is related by evolutionary history. 9. Organisms follow the laws of chemis...

Praxis 5511 – Science Latest Version Graded A+ Active Transport Energy-requiring process that moves material across a cell membrane against a concentration difference Adaptation Inherited characteristic that increases an organism's chance of survival Air Resistance Force Special type of frictional force that acts upon objects as they travel through the air. Most noticeable for objects that travel at high speeds (e.g., a skydiver or a downhill skier) or for objects with large su...

2024 NASM Final Exam | New Full Questions and Answers ( Included ) 100% Correct 1. Systolic blood pressure is defined as: Answer: the pressure in the arteries when theheart contracts (top number recorded) 2. Diastolic Blood Pressure (DBP) Answer: The pressure in the arteries during the relaxation phase (diastole) of the cardiac cycle; bottom number recorded 3. Hypertension Answer: higher than normal blood pressure 140/90 4. Diabetes Answer: chronic metabolic disorder, caused by in...

ANP Exam 1 Questions & Answers 2024/2024 The study of the general form and superficial markings of an organism is called ________ anatomy. - ANSWERSsurface Which of the following is arranged in correct order from the most complex to the simplest? - ANSWERSorganism, system, organ, tissue, cellular, molecular In which abdominopelvic quadrant and region is the stomach predominantly found? - ANSWERSleft upper quadrant and epigastric region A person who is standing facing forward with h...

Bio Exam 3 Questions and Answers 100% Pass What did Griffith discover in his experiment involving bacteria with capsule (S) and non-capsule (R) strains, and what molecule did Avery, MacLeod, and McCarty identify as responsible for this phenomenon? Griffith observed that DNA could transform bacteria, demonstrating for the first time that genetic material can be transferred through a process called transformation. The S-strain, with a polysaccharide capsule, is protected from the immune...

What is a monosaccharide? - The most basic units of carbohydrates. Made of 1 aldehyde and 1 ketone. They are the simplest form of sugar and are usually colorless, water-soluble, crystalline solids. Some monosaccharides have a sweet taste. Examples of monosaccharides include glucose (dextrose), fructose (levulose) and galactose Nature uses the D or L form of carbohydrates - D The two kinds of monosaccharides are - Aldoses, Ketoses

Test Bank for Introduction to General, Organic and Biochemistry 12e 12th Edition by Frederick A. Bettelheim; William H. Brown; Mary K. Campbell; Shawn O. Farrell; Omar Torres. ISBN-13: 1594 Full Chapters test bank Chapter 1: Matter, Energy, and Measurement 1.1 Chemistry and the Study of Matter 1.2 The Scientific Method 1.3 Reporting Numbers in Science 1.4 Making Measurements 1.5 Unit Conversions 1.6 States of Matter 1.7 Density and Specific Gravity 1.8 Describing the Various For...

Atom - An atom is the smallest unit of an element that has chemical properties of the element. All matter is composed of atoms Molecules and Macromolecules - Atoms bond with each other to form molecules. A polymer such as a polypeptide is formed of many molecules bonded together and is called a macromolecule. Carbohydrates, proteins, and nucleic acids (DNA and RNA) are important macromolecules found in living organisms. Cells - The simplest unit of life is the cell. A cell is surrounded by...